131011011203 has 4 divisors (see below), whose sum is σ = 131429577048. Its totient is φ = 130592445360.

The previous prime is 131011011179. The next prime is 131011011223. The reversal of 131011011203 is 302110110131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302110110131 = 1297 ⋅232929923.

It is a cyclic number.

It is not a de Polignac number, because 131011011203 - 2¹⁸ = 131010749059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011011223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209282453 + ... + 209283078.

It is an arithmetic number, because the mean of its divisors is an integer number (32857394262).

Almost surely, 2^131011011203 is an apocalyptic number.

131011011203 is a deficient number, since it is larger than the sum of its proper divisors (418565845).

131011011203 is an equidigital number, since it uses as much as digits as its factorization.

131011011203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418565844.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 131011011203 its reverse (302110110131), we get a palindrome (433121121334).

The spelling of 131011011203 in words is "one hundred thirty-one billion, eleven million, eleven thousand, two hundred three".